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Thread: Pressure Valve

  1. #1

    Question Pressure Valve

    I have a newly installed Kohler K-304-KP Rite Temp pressure balancing valve in my shower. The problem is that, even though the handle is turned all the way up, the water won't get past luke warm. The water in the sink runs hot so it seems to be just an issue with the shower. Any ideas on how to fix this?

  2. #2
    Illinois Licensed Plumber SewerRatz's Avatar
    Join Date
    Nov 2008
    Chicago, IL


    Behind the handle there is a temperature limit stop that needs adjusting.

  3. #3


    When I took the handle off, the stop is going all the way up, the red tab connects to the black stop. Any other ideas?

  4. #4
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    New England


    Some valves use a screw to adjust the limits, some use a lever. You may need to pull that stop off and rotate it. The instructions should have come with the valve. If you don't have them, have you checked with Kohler to see if you can get them?

    It may become obvious if you look at the parts breakdown. There will be some way to adjust the hot volume, you just haven't figured it out yet. Another Kohler gotcha...reinvent the wheel sort of thing...they must do it 'their way'.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  5. #5


    Thanks! I'll pull the instructions and see if I can make sense of it. It's def worth a shot b/c I'm tired of luke warm showers!!


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